Condenser



OCL 9, 1928. 1,686,814

H. H. IDE

CONDENSER Filed June 7, 1924 v y W J fiPryH/de Patented Oct. 9, 1928.

UNITED STATES PATENT OFFIQE.

HARRY H. IDE, OF LA GRANGE, ILLINOIS, ASSIGNOR TO KELLOGG SWITCHBOARD AND SUPPLY COMPANY, OF CHICAGO, ILLINOIS, A CORPORATION OF ILLINOIS.

CONDENSER.

Application filed June 7, 1924. Serial No. 718,424.

My invention relates to condensers such as are used in radio or wireless circuits and an object or feature of my i nventi on is theuprovision of a smallvariablecondenser in com} bination with alarge or m ain variable condenser. In my construction .I utilize one of the plates of the stator elementof the main variable condenser for a plate of .my small variable c0ndenser,:-the.other plate of said smallcondenser being micrometrically ad; j ustable so that a .desi r'e'd ,capacity of said small. variable condenser may; be obtained; j By having the smallcondenser adjustable so that a certain capacity value pf the same may; be obtained,- a greater degree of efiic-iency' of a circuit of a radiofor- ,vvireless system may,

be effected? The; movable -v elementv of; my. small. condenser may be connected in parallel vvith the rotatable element, of the, main 1 condenser so' that it operates as means 'to secure aver'yfine adjustment of the 'capacity, the p mp unitthat is, the small condenser hiaybecon'}, sidered as a vernier, dithe capac- V y o e unit tent s eende we tfmy fi' n din acir it'erran ie a s -t t' he stationary element 'oftheaunit is" m q pqieti a ieiei uiti the. ,main

inds-meet eas d? stei aah ee i'efthe circuit and the small variable element 11};

c ed torenqthenfbrenshi i the fs it i ObYiQ-HS; were, ithati f ie stles ei i s e small v riable-s merset steed- 9 1. d nsemi mam-bem mm t i hsfifil ed a.-

: Pacityi n leeked a s e iii Ed i itiQn zes a s-iea ce-p i a y n' s q' mpanr gid ewie s- Referring to the drawin Fig. 2 1 an; elevation. of g th ot asv el Mothers} W l ewa e pifi lly P edv out in;tl1cv {ensuing specificationiflnd apif pended claims auditor. a clearer understand ing of-ithesarne, reference may be had, to the Referring now in general to my invention i denser VG, the said condenser comprises a fixed plate element S, commonly referred to as the stator element, and a rotor plate element R which is operatively associated with the said stator element S. The rotor element is rotatably supported on a rotatable shaft H, which may be rotated in a clockwise or counterclockwise direction to adjust the plates of the rotor clement'R relative to they plates of the stator element S, The rotor ele-' ment Rand stator element S are suitably supported in .oper'ative'position between 'a pairofinsulation members M and M;

For a detail descriptionj'of the construct-ion andof; the assemblage of therotor element R and-stator element S andalso of the manner in whieh'the sameare supported, reference maybe hadfto ago-pending application filed byErnest A; Bohlman, January29, 1923; Sc

rial Number 615,501, I

mounting member" Mg and re'sts up'on the' circum'feiential face 3,; said'.,cylindrical member- Qhhsfiekp fiis s v l. p at t p e' vent its, rotation relative] tol'th, "insulation mi .fbe lM -fA.t ih lermeh f iit r whic h'lias'its reduced end threaded'andadapted to e rtend iiito'theopening'2 iii'the'member M: and liasjscrew-tlireaded engagement with thelccntral opening in the cylindric'al mem over the reduced end ofthe member 4 and is agonally shapd head of said member/1, and

when the membe'r'4 is screwed into the m'mf' be!- 1,;the terminal 5'vvill be' heldjln place against rotation; fAjthrjeaded member 6 is providedwhich has a metallic disk or plate member :7 suitably secured to its oneend, said disk or plate serving as oneiof the plates o'f; my auxiliary condenser. The threaded memher 6 extends through and has screwfthreaded 1 e tt ns oivi i fi myet ee s. illustrated in the drawings, 1 is a cylindrical smbea hi he gag s a epe s 2 mthe e line p n s i ri e r f f receiving the threaded eiid of saidmen'iber A terminal-member 5 i's provided whlch fi'tsl engagement With the tapped openingjin the tubular member 4, and secured to the other end of the threaded member 6 is a non-con ducting member or knob 8 which has screw' threaded engagement with said other end and is locked thereon by a lock nut 9. When the Y different parts shown in Fig. 6 are assembled,

as just described above, .it will be seen that the disk or plate member 7 will be adjustably po sitioned parallel to the end plate 7) of the tator element 8- of the variable condenser v'C. saidendplate 7). serving as-the other plate of my lixed condenser.

The terminal 5 is one terminal of the auxiliary or vernier element of my condenser unit. the terminal 10 is connected to the stator part 10 of the condenser unit, and the terminal 11 is connected to the main rotary element of the unit.

To increase or decrease the capacity of my variable fixed condenser to obtain the most 15 efficient operation of the circuit, the turning knob 8 may be turned in a clockwise or counterclockwise direction to bring the adjustableplate 7 closer to or further away from the: fixed plate p of the stator element S.

When the plate 7 has been adjusted relative to screwed. down so that its end willengage the threaded member 6' whereby the threaded member 6 and plate 7 are held in their adjusted position., against movement. The plate. 7 hasiquite a latitude of movement so that the capacity. value of. my auxiliary condenser may be extensively as well as minutely varied: to. obtain the correct capacity value which will. effect the. most efficient operation ofthe circuits, I

parent thatI. have provided a variable con denser, which. hasjor onepf its plates, a plateofthe stator, element of the main variable. condenser, V.(L.., a nd'. its" other plate 40 adjustableso thatthecapacity ofsaidisniall condenser may. be. readily altered Whilel have. described, myfinvention ihi connection. witha circuit. arrangement of a radio-or. wireless circuit,, siu'ch description is given only for the sakepi-fexplaining my. 1n-

vention andI. do not wish to be limited thereby. It is obvious that my invention may be utilized for other purposes than that described. Theparts shown in Fig,v 6 may be assembled and'securedtothe insulation member M insteadofthe. member M so that the,

turning knob 8 may extend through the mounting panelsupporting the variable condenser VC whereby theplate 7.-may be ad justedfromthe front of said panel or the frontof the cabinet containing thevariable condenser.

While I have describeda particular form of. my inventionit. is to be understood that I" do not. wish to belimited to the exactstructure as shown and described, as many changes and modifications willreadily suggest'themselves, therefore, I intend to cover all that which may-come within the spirit and. scope of the appended claims.

Having described my invention what I claim as new and desire to secure by United States Letters Patent is:

l. A device of theclass described including a stator element comprising, a plurality of plates, a rotor element operatively associated with said stator element, end plate members for supporting said stator and rotor elements, and adjustable disk, one of said end plate members adjustably supportingsaid adjustable dislr in operative position relative to one of the plates of'said stator element, said one plate and said adjustable disk forming a condenser of a variable capacity.

2. A device of the class described including a variable condenser having a plurality of fixed conducting members, a plurality of movable conducting members operativel'y and adjustably associated with said fixed members, means including a pair ofnon-conduct- 3., A device of the class described including a variable condenser comprising a plurality ofconducting plates, means including a pair of non-conducting members for supporting V said conducting plates, 'a disk; adjustable From the foregoing it will, beat onceapmeans'for adjustabl'y supporting said disk on one of'said non-conducting members and in operableposition relative to one'of said conducting pl'at'es, to-form' "a cond enser' whose capacity is ailterable by' moving-mister rectilinearly.

' 4:. A deviceioftlieclass described including .a variable condenser coinprising a plurality of condiictingf rn'embers, end plates for'supporting said'. conducting members, another condenser havingan adjustabile circularpl ate' rotatably supported in one of'said' end plates, one of said conducting members of said variable condenser formingthe other plate ofsaid second condenser; said adjust supporting said other conducting'member on one of said non-conducting members and in operative position with one of saidfixed'conducting members, said one conducting mem-' ber and said other conducting member forming a condenser, means for adjustingsaid other conducting member relative to said it's one of said fixed conducting members to vary the capacity between said fixed and said adjustable conducting member, and means for holding said other conducting member in its adjusted position independent of said plurality of said movable conducting members, whereby a certain capacity value of said condenser is maintained.

6. A device of the class described including a variable condenser having a plurality of conducting plates, a second condenser having an adj ustab-le plate adjustable in a rectilinear direction, one of said conducting plates forming a plate for said first condenser and also a plate for said second condenser, the capacity of said second condenser being controlled by the rectilinear movement of said adjustable plate.

7. A device of the class described including fixed conducting members and movable conducting members, means including non-conducting members for supporting said fixed and said movable conducting members, another conducting member, means for adjustably supporting said other conducting member on one of said non-conducting members, said other conducting member adjustable in a rectilinear direction relative to one of said fixed conducting members for altering the capacity of said device. A

8. A unit of the character described including a stationary plate and a plate rota-table relative thereto, a second plate movable rectilinearly relative to said stationary plate, an adjustable rotatable shaft for supporting said second plate, means for rotating said shaft to impart a rotating and a rectilinear movement to said plate, said second plate and said stationary plate forming a condenser of relatively small capacity.

9. A unit of the character described includinga stationary plate and a plate rotatable relative thereto, a second plate movable rectilinearly relative to said stationary plate, an adjustable rotatable shaft for supporting said second plate, means for rotating said shaft to imparta rectilinear movement to said plate, said second plate and said stationary plate forming a condenser of relatively small capacity that may be used as a separate condenser or as a Vernier adjustment for the main condenser formed of said stationary plate and said rotatable plate.

10. A unit of the character described including a stationary plate and a plate rotatable relative thereto, a second plate movable rectilinearly relative to said stationary plate, an adjustable rotatable shaft for supporting said second plate, means for rotating said shaft to impart a rotating and a rectilinear movement to said plate, said second plate and said stationary plate forming a condenser of relatively smallcapacity, and means for looking said second plate in its adjusted position independent of the plate rotatable relative to said stationary plate.

Signed by me at Chicago, in the county of Cook and State of Illinois, this 4th day of June, 1924.

HARRY H. IDE. 

